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Kubernetes network service related components
The network service related components of k8s are further divided into the following categories.
- Load Balancer / Ingress: Load balancer (LB), Ingress is a layer that receives communication from outside the cluster and transfers it into the cluster. In particular, LB is “outside the cluster”, so it is often placed separately from K8s. Or the component of Ingress may also be the LB.
- DNS / Service Discovery: Performs name resolution and monitoring of pods and containers inside the cluster . It is a traffic control role in the cluster. In k8s, it’s usually a component of DNS and service discovery rather than DNS alone.
- CNI: A component that supports the Container Network Interface (CNI), which tunnels communication between containers.
Service mesh: A service mesh is a system that can comprehensively and centrally manage pods and services by combining any of the above.
Below, I will introduce the typical components for each classification.
Load Balancer / Ingress
More about cloud service K8s
First of all, as I wrote above, LB is a connection point between the outside and the inside of the cluster, so in the case…
